Square lamp post insertional conjoinment structure

ABSTRACT

A square lamp post insertional conjoinment structure comprised of a slip-mount tube and a casing tube fitted onto the slip-mount tube. The slip-mount tube has disposed at one end an internal binding sleeve and, furthermore, an insertional conjoinment section of a stepped arrangement is formed between the exterior of the internal binding sleeve and the interior of the slip-mount tube at two opposing sides and a spring is installed in each insertional conjoinment section. The casing tube has engagement blocks aligned with the springs. When the casing tube is fitted onto the slip-mount tube, its engagement blocks press inward against the springs to facilitate the sleeving on of the casing tube. After the casing tube engagement blocks have passed the springs, the springs rebound to their original positions, locking the casing tube onto the slip-mount tube and thereby achieving the fixed coupling of the casing tube and the slip-mount tube.

BACKGROUND OF THE INVENTION

[0001] Field of the Invention

[0002] The invention herein relates to a square lamp post insertionalconjoinment structure in which a slip-mount tube has disposed at one endan internal binding sleeve, an insertional conjoinment section of astepped arrangement is formed between it and the slip-mount tube at twoopposing sides and, furthermore, a spring is installed at each of theinsertional conjoinment sections; a casing tube has engagement blocksaligned with and capable of pressing inward against the springs suchthat after the casing tube is fitted onto the slip-mount tube, thesprings rebound to their original positions, locking the casing tubeonto the slip-mount tube and thereby achieving the fixed coupling of thecasing tube and the slip-mount tube.

SUMMARY OF THE INVENTION

[0003] The primary objective of the invention herein is to provide asquare lamp post insertional conjoinment structure comprised of aslip-mount tube and a casing tube fitted onto the slip-mount tube,wherein the said slip-mount tube has disposed at one end an internalbinding sleeve and, furthermore, an insertional conjoinment section of astepped arrangement is formed between the exterior of the internalbinding sleeve and the interior of the slip-mount tube at two opposingsides; a recess is formed in each of insertional conjoinment sectionsand, furthermore, a spring is riveted to the bottom of each recess; thecasing tube has engagement blocks aligned with the springs such thatwhen the said casing tube is fitted onto the slip-mount tube, itsengagement blocks press inward against the springs to facilitate thesleeving on of the casing tube; after the casing tube engagement blockspass the springs, the springs rebound to their original positions,locking the casing tube onto the slip-mount tube and thereby achievingthe fixed coupling of the casing tube and the slip-mount tube.

BRIEF DESCRIPTION OF THE DRAWINGS

[0004]FIG. 1 is an exploded drawing of the invention herein.

[0005]FIG. 2 is an isometric drawing of the invention herein.

[0006]FIG. 3 is a cross-sectional drawing of the assembled embodiment ofthe invention herein (1).

[0007]FIG. 4 is a cross-sectional drawing of the assembled embodiment ofthe invention herein (2).

[0008]FIG. 5 is an exploded drawing of another embodiment of theinvention herein.

[0009]FIG. 6 is a cross-sectional drawing of the second assembledembodiment of the invention herein (1).

[0010]FIG. 7 is a cross-sectional drawing of the second assembledembodiment of the invention herein (2).

DETAILED DESCRIPTION OF THE INVENTION

[0011] Referring to FIG. 1 and FIG. 2, the structural arrangement of theinvention herein, the present invention is comprised of a slip-mounttube 1 and a casing tube 2 fitted onto the slip-mount tube 1, of which:

[0012] The said slip-mount tube 1 has disposed at one end an internalbinding sleeve 3 that is situated inside the slip-mount tube 1 and,furthermore, an insertional conjoinment section 11 of a steppedarrangement is formed between the exterior of the internal bindingsleeve 3 and the interior of the slip-mount tube 1 at two opposingsides; a recess 111 is formed in each of the insertional conjoinmentsections 11 and, furthermore, a spring 112 is riveted to the bottom ofeach recess 111; each said spring 112 is straight at both extremitiesand the center section is raised into a convexity to form a semicircularcatch end 113, the straight extremities of which are fastened to thebottoms of the recesses 11 such that the catch ends 113 project slightlyoutward from the recesses 111.

[0013] The said casing tube 2 has an inner diameter that is equal to theouter diameter of the insertional conjoinment sections 11 to enable itsensleeving over the insertional conjoinment sections 11 as well asengagement blocks 21 aligned with the spring 112 catch ends 113 on theslip-mount tube 1 that push inward against the springs 112.

[0014] Referring to FIG. 3 and FIG. 4, the cross-sectional drawings ofthe invention herein, when the said casing tube 2 is fitted onto theslip-mount tube 1, the casing tube 2 engagement blocks 21 press inwardagainst the springs 112 to facilitate the sleeving on of the casing tube2 (as shown in FIG. 3); after the casing tube 2 engagement blocks 21pass the spring 12 catch ends 113, the springs 112 rebound to theiroriginal positions as structurally characteristic, locking the casingtube 2 onto the slip-mount tube 1 and thereby achieving the fixedcoupling of the casing tube 2 and the slip-mount tube 1 (as shown inFIG. 4); since the catch ends 113 of the slip-mount tube 1 insertionalconjoinment sections 11 are of a curved structural arrangement, after asufficient magnitude of force is applied to the casing tube 2, theengagement blocks 21 push against the spring 112 catch ends 113 onceagain to enable the removal of the casing tube 2, thereby constitutingan insertional conjoinment structure in which casing tube 2 removal isaccomplished by the direct application of force.

[0015] Referring to FIG. 5, the drawing of another embodiment of theinvention herein, the said slip-mount tube 4 has disposed at one end aninternal binding sleeve 5 that is situated inside the slip-mount tube 4and, furthermore, an insertional conjoinment section 51 of a steppedarrangement is formed between the exterior of the internal bindingsleeve 5 and the interior of the slip-mount tube 4 at two opposingsides, and a slide track 52 is formed along each insertional conjoinmentsection 51; the said slide tracks 52 have a tiered surface and a spring53 is fastened by a screw P to each of its lower level planes 521 and,furthermore, the height of the screw P is slightly less than that of itshigher level planes 522 so that the casing tube 2 is not obstructed bythe screws P during the course of travel; the one extremity of thesprings 53 fastened by the screws P to the lower level planes 521 isstraight and fixed flat against the slide tracks 52, while the otherextremity is contoured such that it projects slightly above the higherlevel plane 522 to form detent ends 531.

[0016] The said casing tube 2 has an inner diameter that is equal to theouter diameter of the insertional conjoinment sections 51 to enable itsensleeving over the insertional conjoinment sections 51 as well asengagement blocks 22 aligned with the spring 53 detent ends 531 on theslip-mount tube 4 that push inward against the springs 53 as they travelover the higher stepped planes 522.

[0017] Referring to FIG. 6 and FIG. 7, which illustrate the operatingmethod, when the casing tube 2 is fitted onto the slip-mount tube 5, thecasing tube 2 engagement blocks 22 press inward against the springs 53to facilitate the sleeving on of the casing tube 2 (as shown in FIG. 6);after the casing tube 2 engagement blocks 22 pass the spring 53 detentends 531, the springs 53 rebound to their original positions asstructurally characteristic and latch onto the rear ends of theengagement blocks 22, thereby achieving the fixed coupling of the casingtube 2 and the slip-mount tube I (as shown in FIG. 7); furthermore,after the said casing tube 2 is fitted onto the slip-mount tube 1, itcannot be pulled off by a direct application of force alone because thesprings 53 are retained against the rear ends of the engagement blocks22 and, therefore, a tool must be utilized to simultaneously depress theboth springs 53 at the two sides of the slip-mount tube 1 in order topull off the casing tube 2, thereby constituting an insertionalconjoinment structure in which casing tube 2 removal cannot beaccomplished by the direct application of force.

1. A square lamp post insertional conjoinment structure comprised of aslip-mount tube and a casing tube fitted onto the slip-mount tube, ofwhich: The said slip-mount tube has disposed at one end an internalbinding sleeve that is situated inside the said slip-mount tube and,furthermore, an insertional conjoinment section of a stepped arrangementis formed between the exterior of the said internal binding sleeve andthe interior of the said slip-mount tube at two opposing sides; a recessis formed in each said insertional conjoinment section and, furthermore,a spring is riveted to the bottom of each said recess; each said springis straight at both extremities and the center section is raised into aconvexity to form a semicircular catch end, the straight extremities ofwhich are fastened to the bottom of the said recesses such that the saidcatch ends project slightly outward from the said recesses. The saidcasing tube has an inner diameter that is equal to the outer diameter ofthe said insertional conjoinment sections to enable its ensleeving overthe said insertional conjoinment sections as well as engagement blocksaligned with the said spring catch ends on the said slip-mount tube thatpush inward against the said springs.
 2. A square lamp post insertionalconjoinment structure comprised of a slip-mount tube and a casing tubefitted onto the slip-mount tube, of which: The said slip-mount tube hasdisposed at one end an internal binding sleeve that is situated insidethe said slip-mount tube and, furthermore, an insertional conjoinmentsection of a stepped arrangement is formed between the exterior of thesaid internal binding sleeve and the interior of the said slip-mounttube at two opposing sides, and a slide track is formed along each saidinsertional conjoinment section; the said slide tracks have a tieredsurface and a spring is fastened by a screw to each of its lower levelplanes and, furthermore, the height of the said screw is slightly lessthan that of its higher level planes so that the said casing tube is notobstructed by the said screws during the course of travel; the oneextremity of the said springs fastened by the screws to the said lowerstepped planes is straight and fixed flat against the said slide tracks,while the other extremity is contoured such that it projects slightlyabove the said higher level planes to form detent ends. The said casingtube has an inner diameter that is equal to the outer diameter of thesaid insertional conjoinment sections to enable its ensleeving over thesaid insertional conjoinment sections as well as engagement blocksaligned with the said spring detent ends of the said slip-mount tubethat push inward against the said springs as they travel over the saidhigher level planes.